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Over the last few years, more people perform their social activities on mobile devices, such as mobile payment or mobile wallet. Mobile commerce (m-commerce) refers to manipulating electronic commerce...
The basic objective of this work is to construct an efficient and secure mechanism for mobile commerce applying the concept of financial cryptography and secure multi-party computation. The mechanis...
Certified exchange of messages is an essential mechanism for e-commerce; the timing aspects (timeouts and timestamps) are very important for practical applications. However existing formal methods fo...
This paper was presented at the Bullets, Butter, and Trade: Canada/U.S. Defence Co-operation Symposium at Mewata Armoury, Calgary on 13 March 1999. Let me begin by thanking the Strategic Studies Prog...
We present specifications and provable protocol, for secure ordering and provision of digital goods and services. Notably, our protocol includes fully automated resolution of disputes between provid...

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